256724676713322 has 24 divisors (see below), whose sum is σ = 556350247992864. Its totient is φ = 85557438630504.

The previous prime is 256724676713279. The next prime is 256724676713339. The reversal of 256724676713322 is 223317676427652.

It is a happy number.

256724676713322 is a `hidden beast` number, since 2 + 5 + 6 + 7 + 246 + 7 + 67 + 1 + 3 + 322 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 256724676713322.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1454376568 + ... + 1454553075.

It is an arithmetic number, because the mean of its divisors is an integer number (23181260333036).

Almost surely, 2^{256724676713322} is an apocalyptic number.

256724676713322 is an abundant number, since it is smaller than the sum of its proper divisors (299625571279542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256724676713322 is a wasteful number, since it uses less digits than its factorization.

256724676713322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908934554 (or 2908934551 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 63.

The spelling of 256724676713322 in words is "two hundred fifty-six trillion, seven hundred twenty-four billion, six hundred seventy-six million, seven hundred thirteen thousand, three hundred twenty-two".